Winco PSS40LS/B - Manual (Page 10)

Page 8 1108-20 60706-148
The connections to the engine control will be made in a 2" X 4"
connection box mounted on the back side of the generator control
box just above the engine control. The wiring from the engine
control has already been stubbed into this connection box for
your convenience. The wires are labeled as follows:
Battery Negative #1 Yellow Wire S1
Start Signal #23 Yellow Wire S23
The connections in the automatic transfer switch will be made on
a terminal block. This terminal block is located in the lower right
hand corner on the back wall of the switch. The terminals are
labeled S1, and S23.
These control wires MUST NOT be run in the same conduit as
the AC power leads coming from the generator or the 120 volt
circuit for the battery charger and block heater.
*************
***** WARNING *****
*************
EQUIPMENT DAMAGE - DC connections between Winco engine
generators and other makes of Automatic Transfer Switches will
vary. The Winco engine generator sets require a relay closure
between Battery Negative (wire S1) and Start ( wire S23) to
operate. The Battery Positive is not used in the A.T.S. panels.
Connecting Battery Positive in any switch can cause permanent
damage to the engine control module.
WINCO UL AUTOMATIC TRANSFER SWITCHES
If you are installing a UL transfer switch, there are a couple of
terminal identification changes you will have to watch for, other-
wise they basically wire up the same.
The DC terminal block in the UL switch is labeled 11 & 12. Wire
S1 will connect to terminal #11 and S23 will connect to terminal
#12.
The normal power line connection points in the UL-ATS are
labeled N1, N2 for single phase and N3 is add for three phase.
The generator connection points in the UL-ATS are labeled E1 &
E2 for single phase and E3 is added for three phase. When
wiring single phase from the generator to the UL-ATS, G1
connects to E1 and G3 connects to E2.
There is no neutral connection point in these switches so all three
neutral leads (line neutral, generator neutral and load neutral)
should be connected together and taped up. See the prints
enclosed with UL-ATS panel for additional information.
*************
***** WARNING *****
*************
EQUIPMENT DAMAGE - The UL-ATS panels are voltage
sensitive. Do not attempt to use a 240 volt ATS on a 208 volt
system. Doing so will cause damage to the control circuits in the
ATS panel. Contact the factory if you have any concerns or
questions.
INITIAL START UP
*************
***** WARNING *****
*************
EQUIPMENT DAMAGE - DO NOT jump start these engine
generator sets. Starting these units on a low battery or jump
starting them will cause damage to the engine control module.
Use the following check list to verify correct installation before
starting the engine:
1. Engine oil. Fill as required with proper grade/qty.
2. Engine coolant. Fill as required with proper
mixture.
3. Unit mounting base properly bolted down.
4. Clearance for service and maintenance on all
sides.
5. Proper fuel line material and size.
6. All fuel line connections tight.
7. Fuel line protected and a moisture trap installed
(may be required for N.G.).
8. Correct LP/NG pressure 4-6 Oz. (7-11" Wc).
9. Battery connections clean and tight.
10. Battery fully charged.
11. All A.C. and D.C. wiring installed and properly
protected.
After completing the above checklist, the engine-generator
set is ready for the initial start-up test.
PROCEDURE
Move the selector switch on the engine generator to the “RUN”
position. The engine-generator will crank and start automati-
cally. If the engine fails to start, return selector switch to the
“stop” position and correct the trouble before proceeding.
With the engine running smoothly check the no load voltage and
frequency at meters on the front panel. The voltage should be
208/240/480 A.C. depending on which model you have and a
frequency of 59.5 To 60.5 hertz (Hz). If you have the proper
voltage at the generator the next step is to check the voltage at
the generator terminals in the Automatic Transfer Switch. The
voltage between the G1 and the G3 terminals should be the same
as it was on the generator front panel. The voltage should also
be checked between the hot terminals (G1 and G3) and the G-N
to be certain of a balanced voltage output and a solid neutral
connection. The voltage between G1 and G-N should be about
120 volts AC (277 on 480 units). The same approximate voltage
should be found between terminals G3 and G-N (120 volts AC).
On three phase panels the G2 voltage level should also be
checked. ON 240 VOLT (DELTA) SYSTEMS BE SURE YOU
KNOW WHERE THE HIGH VOLTAGE "WILD" LEG IS. IT
MUST BE IN THE SAME LOCATION ON THE LINE SIDE AS IT
IS ON THE GENERATOR SIDE. (i.e. if it's on L-3 on the line side
it must be on G-3 on the generator side.